New York Agricultural Experiment Station. 



77 



Table V.— Little Change in the Amount of Nutrients with an 



Increase of Protein. 



Average of 44 rec- 

 ords from cows 

 averaginii 5 yrs. 

 old and 5.7 montLs 

 ia milk. 



be 



c 





Before 



After 



33 



. <D 



* -^ Before 



o 



After 



Per 1000 Lbs. Live Weight. 



Total 

 digest- 

 ible or- 

 ganic 

 matter. 



Lbs. 

 14.8 



14.7 



Fat in 

 milk. 



Per ct. 

 4.2 



4.1 



Digest- 

 ible 

 pro- 

 tein. 



Lbs. 

 1.86 



2.16 



Fuel 

 value. 



Cal. 

 29,927 



30,034 



Nutri- 

 tive 

 ratio. 



1:7.8 

 1:6.8 



Average Per 

 Dat Per Cow. 



Milk 

 yield. 



Lbs. 

 22.3 



21.8 



Fat In 

 milk. 



Lbs. 



.95 

 .89 



Dry 



matter In 



food for 



one lb. 



of milk 



solids. 



Lbs. 



7.0 

 7.6 



Digest- 

 ible dry 

 matter in 

 food for 

 each lb. 

 of milk 

 solids. 



Lbs. 



4.6 

 5.0 



THE AMOUNT OP NUTRIENTS BUT LITTLE CHANGED AND THE 



PROTEIN REDUCED. 



The average of 43 records when the protein was reduced with- 

 out change in the amount of nutrients shows considerably more 

 than the usual shrinkage in milk flow. The moderate rate of 

 gain in live weight was considerably increased after the change 

 in the ration. 



